<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<script type="text/javascript">
			//语法：(function() {})() 或者 2. (function(){}());
			// function show(){
			// 	console.log('show....');
			// }
			// show();
			
			(function show(){
				console.log('show...');
			})();
			
			(function test(){
				console.log('test...');
			}());
			
			
		</script>
	</body>
</html>
